class Restaurant:
    def __init__(self,restaurant_name,cuisine_type,number_served = 8):
        self.restaurant_name = restaurant_name
        self.cuisine_type = cuisine_type
        self.number_served = number_served
    
    def describe_restaurant(self):
        print('餐饮名字:', self.restaurant_name)
        print('菜品类型:', self.cuisine_type)
        print('服务人数:', self.number_served)
        
    def open_restaurant(self):
        print(self.restaurant_name + ',正在营业')

    def set_number_served(self,number_served):
        self.number_served = number_served
        print('已设置就餐人数为:',number_served)

    def increment_number_served(self,number_served):
        self.number_served += number_served
        
